John A. Poor's determination in 1845 to bring rail service to Maine and to make Portland the winter port for Montreal, along with the steel foundry he started to build locomotives and many other products, helped boost the economy of Portland the state.

In 1924, with Portland was on the verge of profound changes, the Tax Assessors Office undertook a project to document every building in the city -- with photographs and detailed information that provide a unique view into Portland's architecture, neighborhoods, industries, and businesses.

The boundaries of Maine are the product of international conflict, economic competition, political fights, and contested development. The boundaries are expressions of human values; people determined the shape of Maine.